Besides, they are quite different in power. (Alternatively, this can be calculated as 19 multiplied by one-eighth of an inch). Everyone loves LEDs, but believe me when I say that not all LEDs are the same. The “A” shape bulb was one the earliest bulb designs and it remains popular among homeowners until now. A21 light bulbs are lesser known than their extremely popular counterpart - the A19 bulb - and are more commonly used for higher light output applications. Even though the main difference between the two is really the size, the overall size of the bulb may actually affect the power, as well as the energy consumption of the bulb. It stands as a standard for the bulb types. The name A21 consists of two parts - the first letter and the two digit number. Bulb Shape: A19 Beam Angle: 220° CRI: 80 Lumens (Initial): 1100 Color Temperature: 4000K Bulb Color: Cool White $ 3.65. For illumination to be appropriate, the size of the bulb should be commensurate with the size of the room. Another feature of the oblong globe shape is the increased strength, allowing it to hold a vacuum; an essential element to the incandescent lamp. If you are searching for dimmable lights you need to buy those which are marked as Dimmable. Phone: 602-298-7076 Email: [email protected], Hours Mon — Fri: 9:00am – 5:00pm Saturday – Sunday: 11:00am – 3:00pm, A19 Bulb Vs E26 Bulb: What’s the Difference? The A19 and A21 are pear-shaped LED bulbs that offer a popular alternative to incandescent bulbs. This is the common base size for light bulbs in the US. A2. In comparison with measurement A21 light bulb is more longer than the A19 light bulb. Just Ping Us! LED bulbs around 2700 Kelvin will be the closest match to what you're used to seeing with incandescents. A19 vs A21 Light Bulbs Comparison and Buyer’s Guide by Alex Norman | Last Updated: December 15, 2020 So many types of bulbs, so little time to choose a perfect one. These fixtures usually attach 40 to 60 Watt incandescent bulbs. We’ll be talking about the difference between a19 vs a21 bulb, as well as some of the applications used by A19 vs A21 bulbs. Another common A-series light bulb type is the A15 bulb which is commonly used for appliances and ceiling fans. Most A19 bulbs in the States will have an E26 base, but there are … The number that follows the "A" within the A series indicates the width of the bulb in one-eighth inch units or in millimeters. A19 VS A21: Light Bulb Offer a Popular Alternative.The A19 and A21 are pear-shaped LED bulbs providing a common alternative While comparing the two types of bulbs we need to take into account features like dimension, base size, degree of distribution of light, etc. It has a diameter of 2.6 inches and a length of 4.1 to 5.4 inches. These cookies will be stored in your browser only with your consent. For the most part, A21 bulbs that have added lumen power in it will really result in a higher energy bill. The letter A in these bulbs denotes the shape, while the numbers following it denote the diameter at the widest point. Last update on 2021-01-10 / Affiliate links / Images from Amazon Product Advertising API. Although the size of A21 does not make much of a difference, it may not fit in some fixtures. Distribution of Light: A19 VS A21 Bulb, Difference Between A19 and A21: Conclusion, Amazon Basics 100W Equivalent, Daylight, Non-Dimmable, 15,000 Hour Lifetime, CEC Compliant, A21 LED Light Bulbs | 6-Pack, Great Eagle A19 LED Light Bulb, 9W (60W Equivalent), UL Listed, 4000K (Cool White), 750 Lumens, Non-dimmable, Standard Replacement (4 Pack), Want to Android Cast Screen To TV Without Chromecast? Light bulb size: A17, A19, and A21. ], With a CRI (color rendering index) of 90 this bulb will bring out the rich, natural colors wherever it is installed, Provides 1600 lumens of light immediately, with no waiting time to warm up to full brightness; operates up to 15,000 hours and will last over 13 years (based on 3 hours of use each day). While this is actually true to a certain extent, knowing the differences between an A19 vs A21 bulb will help you work around heat dissipation issues, as well as energy efficiency issues. The reason it's useful to know both the shape and base is because you can't just ask for one of these and get the bulb you're looking for. That’s why you need to familiarize yourself with these two common bulb sizes. If ever you’re curious about the two types or if you just want a deeper understanding of them, then always keep our comparison guide in mind. The A21 looks much like the A19, and both can be attached to many of the same fixtures. Taking note of these small things will really be able to help you understand more about your lighting system in the long run. Buzzing sound is usually a problem with dimmable LED lights. The term A21 is used to describe the overall shape and dimensions of a light bulb. We'll assume you're ok with this, but you can opt-out if you wish. At NLI, we stock nearly all voltages, wattages, and sizes including A15, A19, A21, and A23. Should you get an A19 or an A21 bulb? Q3. High wattage A19 bulbs are more complicated. LEDs t… Why Transparency is so Important for Supply Chains? A19 can fit into the A21 lamp holders, but not the other way around. To tell the difference between one A-shaped bulb and another, the bulbs are classified based on their diameter. In fact, it can be less than 5 years. It has a diameter of 2.4 inches and a length of 3.9 to 4.3 inches. Because A-shaped bulbs have so many applications, there is sure to be one that fits your needs. Since the A21 is available in higher wattage compared to A19, you can get better illumination with an A21 if the area is large. The A19 and A21 lamps are usually blended due to their similar characteristics. If there is already a bulb in the fixture, you can take it along and match it with the new bulb. Naturally, because the A19 and the A21 Led light bulbs last for so much longer, they will cost more than the traditional light bulbs. A typical A19 is 2.375 inches in diameter (19/8 = 2.375) and 4.13 inches in height, while an A21 is 2.625 inches in diameter (21/8 = 2.625) and about 5 inches in height. The A19 is the most commonly used A … Dimensions of an A19 bulb By definition, an A19 bulb has a diameter of approximately 2.4 inches. This website uses cookies to improve your experience. See more…. As we have already established, the A21 bulb can have a higher lumen level since it has a bigger space for better heat dissipation. The A19 bulbs don’t have reflectors. The number designation in the code is usually the width of the bulb at its widest point designated in eighths of an inch. [Nest Thermostat Comparison in 2021], Nest E VS Ecobee3 Lite: Which One’s Better? A19 vs A21 Bulb – A Quick Guide; Best Work Light For Mechanics; Best Ring Light For Streaming Reviews; Best LED Fog Light Bulbs Reviews; Related Posts: A19 vs A21 Bulb - A Quick Comparison Guide; Wifi Light Bulb Security Camera Reviews (Reliable… The Best Flagpole Light (Reviews and Guide) Best Softbox For Speedlight Reviews (and Tips) Best Solar Step Lights To Buy (Reviews and Guides) Night … The A19 and A21 are pear-shaped LED bulbs that offer a popular alternative to incandescent bulbs. Long Lasting - 10,000 hours or over 9.1 years. Our editorial content is not influenced by commissions. This too can effectively light up a medium-size room. HowToTechh is a participant in the Amazon.com Services LLC Associates Program, an affiliate advertising program designed to provide a means for website owners to earn advertising fees by advertising and linking to Amazon(.com, .co.uk, .ca, etc) and any other website that may be affiliated with Amazon.com Services LLC Associates Program. Moreover, comparing the buyers’ experience always adds teeth to the review. Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. Therefore, it is a good idea to make sure that the fixture in your house will be able to accommodate the A21 bulbs. This makes the A21 suitable for lighting up bigger rooms. This is the pear-shaped type of lightbulb that uses an E (Edison) sized base. We offers various kinds of information about LED light bulbs that you would need if you want to install them in your home. These A-shape bulbs have a standard medium base that you can screw into ordinary residential light sockets and table lamps. Although the size difference is negligible in most applications, many buyers have been wanting to know why higher-wattage household LED bulbs are made in a larger size. If you are looking for replacing the CFL or Incandescent bulbs in your house, you can well go for either an A19 or an A21. A3. (And Reviews), T3 500W Halogen Bulb LED Replacement (Quick Guide), LED Replacement For Halogen T3 (Quick Guide), How to Cut, Connect & Power LED Strip Lights (Quick Guide), How to Change the Color of an LED Light - Quick & Easy, The Best H7 Bulb For Car Headlights (2020 Guide). Read HERE! That’s the most obvious difference between these two products. This number represents a bulb size in diameter. The higher the width the larger is the surface area. That’s why you can pretty much use either one for residential purposes like table lamps, ceiling fan lights, basement lights, and the like. KRM Light+ has grown to become the leading LED lighting resource center in the US. Now that we understand the uses of BR30 vs BR40 bulbs, let's talk about the pros and cons of choosing LEDs for your light … So, the degree of distribution of light measures how far the light bulb can effectively illuminate. Distribution of light is an important measurement of the efficacy of a light bulb since LED bulbs illuminate evenly. Q4. A2. Larger rooms need larger bulbs and smaller rooms need smaller bulbs. On the other hand, the A21 bulb has larger dimensions of 2.6225 inches in diameter and 5 inches in height. But opting out of some of these cookies may have an effect on your browsing experience. We at “HowToTechh” help our readers to stay updated with technology at their best. Because of this bigger size, manufacturers actually tend to make stronger lights of up to 100W using this size of the bulb. We also use the website to answer various questions that you may have regarding LED lights. Between the A19 and the A21, the A21 light bulb is slightly more expensive but you are only looking at a few dollars extra for a multipack. on Signify. The A19 A21 Bulb Dimensions Are As Follows: The Brightest Handheld Spotlight: Reviews & Buying Guide, 4 Best Solar Lights Consumer Reports 2020, Best Light Bulbs For Bathroom Vanity 2020, Great Eagle A19 LED Light Bulb, 60W Equivalent, LOHAS 150W-200W Incandescent Bulb Equivalent, LOHAS 150W-200Watt Equivalent LED Light Bulbs. Would an A21 of 60 Watt equivalent last longer than an A19 of the same wattage? You can find LED bulbs that fit that description here, or other types of bulbs here. The A21 bulb measures 2.6 inches in diameter and between 4.1 and 5.4 inches in length. The “A” shape bulb was one the earliest bulb designs and it remains popular among homeowners until now. Additionally, KRMLight.com participates in various other affiliate programs, and we sometimes get a commission through purchases made through our links. Although equivalent wattage bulbs of both A19 and A21 can produce equivalent light, A21 is the most commonly available bulb in higher wattages. Want to know the difference between shunted and non-shunted socket? Nest Thermostat E VS Nest Learning Thermostat: Which One To Get? [Comparison In 2021], Ecobee 3 VS Ecobee 4: Compare Ecobee Models In 2021 [Which One’s the Smartest? To answer the question about whether A19 and E26 bulbs can be the same or not, YES they can. So the light bulb that most of us have used in our homes here in the States is an A19 bulb with an E26 base. So, if you are keeping it switched on for 6 hours or more, it is not going to last 10 years. The A19 light bulb has a radius of 1.2 inches or a diameter of 2.4 inches. The only difference between them is in size. General | 0 comments | 0 comments KRM Light+ is the number 1 resource for LED light reviews, we are here to help you make an informed choice on all your LED light needs. a19 bulb vs a21. So, let’s get down to a comprehensive comparison of A19 and A21. Dimension – A21 Bulb On the other hand A21 light bulb has larger dimensions of 2.6225 inches and a length starting from 4.1 to 5.4 inches. That said, the more energy-efficient option would be the A19 bulb. As an Amazon Associate I earn from qualifying purchases. Similarly, the length of the light bulb is 3.9-4.3 inches. Comparing the two types of bulbs means that you need to compare the a19 vs a21 bulb shape. A21 Bulb The A21 light bulb has a diameter of 2.6 inches, and a length of about 4.1 to 5.4 inches. A19 vs. A15 vs. A21 vs. A23. Check out the differences between an a19 vs a21 bulb first with our comparison guide, so you’ll know which suits you. For all other usage you can go for any of the two. The A19 has a diameter of 2.375 inches and a height of 4.13 inches. HowToTechh provides How-to tutorials and guides related to gadgets, softwares, games and everything related to technology. This website uses cookies to improve your experience while you navigate through the website. As already mentioned earlier, A19 and A21 refer to the size of the bulb. HowToTechh is reader-supported. If it is large compared to the room, it would appear too bright. A19 bulb is 2.375 inches in diameter (19/8=2.375) and 4.13 inches in height, while an A21 bulb is 2.625 inches (19/8=2.375) and 5 inches in height. This LED screw in 16 pack from Amazon is one of the best deal on A19 LED bulbs we've seen at only about $1.50 per LED bulb! From a distance, there may not seem to be any differences between the A19 vs A21 bulb. So the internal electronics of A21 have to work under less heat compared to that in A19. We know four commonly used thread size groups for lamps: Candelabra bulb has an E12 base in North America, while in Europe comes with an E11 mark. If you prefer the cool white light of clear metal halide lamps, look for an LED A19 with a color temperature of 4000 Kelvin. KRMLight.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. You need to consider the measurement of the base of the light bulb as this will help you decide whether the existing lighting fixture will fit the bulb or not. You can get the ‘A’ size bulbs in 60 Watt, 75 Watt, 100 Watt, 125 Watt, 150 Watt, and other equivalent power ratings. Nevertheless, if you need a high power bulb it is a good idea to go with an A21. This can definitely light up a medium-size room effectively. So, if you are not going for dimmable lights, there is less chance of hearing any buzzing sound. Another common A-series light bulb type is the A15 bulb which is commonly used in the US for appliances and … The dimensions in millimeters are 112.7mm in length and 69.5mm in diameter. Here is a comparison, A19 VS A21 that can help you decide the best buy. As far as the distribution of light is concerned, both A19 and A21 have the same efficacy. Nevertheless, you can get these bulbs in higher wattage of 100, 125, or 150 Watt. The A21 is larger in length and diameter compared to the A19. Obviously, an A21 bulb will be able to produce a higher number of lumens as compared to an A19 sized one because the A21 bulb has a bigger space for heat dissipation. However, the degree of distribution is the same for both. For example, an A19 is 2.375 inches in diameter (19/8=2.375) and 4.13 inches in height while an A21 is 2.625 inches in diameter (21/8=2.625) and 5 inches in height. Both the light bulbs have the same base size. If you’ve gone over to the light bulb section at the hardware store, you’ve probably seen bulbs with sizes like A19 or A21. This bulb produces a dimmable warm white light (2700K) that is ideal for all rooms. Necessary cookies are absolutely essential for the website to function properly. The A15 bulb is 15 ⁄ 8 in (1 7 ⁄ 8 in; 48 mm) wide at its widest point. Green Creative 98562 - 9W LED A19 - 2700K. Since they have the same base, you may be thinking that it won’t really make a difference choosing between the 2 since they can be used interchangeably anyway. A19 vs. A21 Product Dimensions The A19 measures around 2.375 inches in diameter and 4.13 inches height, whereas the A21 bulb comes in at larger dimensions, 2.6225 inches wide and 5 inches height. White and color ambiance. The A21 light bulbs also don’t come with reflectors. To start it off, it is first important to know what is a19 vs a21 bulb. Just to give you an idea, the A refers to a standard size type of lightbulb that is used for most homes. On top of that, it's fairly safe to say that Philips Hue White A19 is a more popular led bulb, based on its reviews. So, as you can see, it is clear that A21 has a slightly longer neck and diameter than A19. Do these bulbs really last long; like say 10 years? Most LEDs claim to have a lifespan of 10 years. So, the light emitted by them travels in all directions, i.e in a 360 degrees angle. The most commonly used A-series light bulb type is the A19 bulb which is 2 3 ⁄ 8 inches (60 mm) wide at its widest point and approximately 4 3 ⁄ 8 inches (110 mm) in length. It has an E26 light bulb base, which is a medium, light bulb base size considered to be the standard base size in the US. So, you would not have any problem in fixing either of them to your existing lighting fixtures at home, if they are standard ones. Here is a comparison of the base size of A19 and A21. So Philips Hue White A19 tends to get more favorable ⭐ reviews than Philips 3-Way A21, as seen on the chart below. Aside from the shape, they both use the same type of base for the socket. However, you may want to take note that this sort of power also comes with a price– energy efficiency. This is slightly longer than the A19. Brand: Green Creative Part No: 9A19/927/277V Order Code: 98562 Weight (lbs): 0.15 Length: 4.45" UL … If you need brighter light, you may need to use 100 Watts incandescent bulbs. A17 light bulb has 2 ⅛ inches in diameter, A19 2 ⅜, A21 2 ⅝ inches. The A-shape LED bulbs can mitigate this problem and produce brighter light at lower power consumption. It is mandatory to procure user consent prior to running these cookies on your website. However, further examination of the bulbs will show you that there is a slight difference in the size of the bulb head. They differ by base size, bulb size, form, type, wattage, luminosity, and more. The A21 bulb has adequate capacity to house higher-lumen LEDs due to its ability to get around the heat issues that a… 3. There is a chance that it would since the amount of heat generated is the same in both, but in the A21 it gets more space to disperse the heat. In other words, they come from the same shape type but differ in size. Qty: add to cart. So an A19 is an A shape bulb and is 2.375 inches in diameter (19 divided by 8). Read the full disclosure. What exactly is the difference between these two sizes and how does the size difference affect how you choose anyway? Since most A21 bulbs these days are packed with power, you may want to reconsider using them if you don’t need such strong lighting and if you want to save money. Now, a bulb’s power is usually measured in lumens. You just need to ensure the right wattage to light up a given area. A21 Bulb Dimensions 3000 Kelvin bulbs are similar in appearance to halogen lamps. Now, a bulb’s power is usually measured in lumens. They have a standard base and light distribution. [Google Nest VS Ecobee Thermostat In 2021], SmartThings Hub V2 VS V3: Which Samsung Smart Home Hub Should I Buy? Lower Kelvin color temperatures give you a warmer, more yellow light while higher Kelvin color temperatures will give you a cooler, bluer light. But, first of all, you need to decide whether you need an A19 or an A21. 4000K Cool White color. An A19 bulb, therefore, has a diameter of 19 divided by 8 inches, or approximately 2.4 inches. An A19 of high wattage is often more complicated and may not last long due to extreme heat generation. This is especially true for LED lights of these sizes since LED lights are extremely powerful. [A How-To Tutorial]. For example, an A19 is 2.375 inches in diameter (19/8=2.375) and 4.13 inches in height while an A21 is 2.625 inches in diameter (21/8=2.625) and 5 inches in height. The larger the surface area the greater is the spread of light. Not all A19 and A21 are dimmable lights. If the bulb is small compared to the size of the room it will not produce enough lighting. KRM Light+ is here to help you make an informed choice on all your LED light needs. If you buy an item via links on this page, we may earn a commission. Dimensions are also important to make sure that the bulb fits the base and also the lamp head. And in millimeter, it is 78.5 mm in diameter and 139.7 mm in length. They get warmer in tone as the light gets dim. 9W LED bulb replaces 60W bulb. So, they too have a 360 degrees distribution of light. On the other hand, the A21 bulb has larger dimensions of 2.6225 inches in diameter and 5 inches in height. We also use third-party cookies that help us analyze and understand how you use this website. Philips Hue White E12 candle bulb (Bluetooth + Zigbee) Learn more. The A21 looks much like the A19, and both can be attached to many of the same fixtures. It has a larger dimension which means that it can manage the heat generated well and also distribute the light over a wider area. Measuring in millimeters, it is 78.5 mm in diameter and 139.7 mm in length. We will help you for sure. Common sizes of the A bulb are A15, A19, and A21. While size may be the main and most obvious difference between the two bulbs, they also have a difference in power. – About Us – Contact Us – Privacy Policy – Amazon Affiliate Disclosure. While size may be the main and most obvious difference between the two bulbs, they also have a difference in power. Comparison between A15, A17, A19, A21, A23 light bulbs by their dimension. As a buyer, you may not really see the significance of differentiating the two, but it will help if you know the pros and cons of the A19 vs A21 bulb. A19. Epson 7710 VS 7720: Which WorkForce Printer is Better in 2021? These cookies do not store any personal information. Although A-shaped lamps are similar, the difference is in size. This too has an E26 light bulb base like the A19. Bulbs with a higher dimension can also better contain the heat generated. We recommend Cree’s Exceptional Light Quality line of A19 bulbs. Hence, for those who are very particular with the numbers, you really have to take note of these small details. From garden solar LEDs, to security lights. Incandescent bulbs do produce brighter light, but they are neither environmentally friendly nor pocket friendly. Part #:104085. In 2013 we were celebrating when … Select Page. Cheap LEDs often lack brightness, emit uneven light, lose power over time or break entirely. However, it is based on an assumption that you would light it only for say 3 hours a day. This category only includes cookies that ensures basic functionalities and security features of the website. For example, though you could find one A19 bulb that is 4” long and another that is 3”, both would have the same diameter. The A19 has a diameter of 2.375 inches and a height of 4.13 inches. Is e26 the same as a19? We promise to help you whenever you feel stuck. So, this was a detailed comparison of A19 VS A21 from our side. These A-shape bulbs have a standard medium base that you can screw into ordinary residential light sockets and table lamps. If the size is not a problem, you can consider any of them. You also have the option to opt-out of these cookies. The most commonly used A-series light bulb type is an A60 bulb (or its USC equivalent, the A19 bulb), which is 60 mm (19/8 in or 2 3/8 in) wide at its widest point and approximately 110 mm (4 3/8 in) in length. The only thing you need to see is that for table lamps A19 is a better option. There are a lot of similarities between A19 and A21 LED bulbs. A4. These bulbs have the same pear shape, but different sizes. Now that you know the differences between the two, you might be asking if there are any significant similarities that we need to take note of. Save up to 85% on your energy bill – Energy efficient 9 watt LED bulbs to replace your 60 watt bulbs for immediate savings now! 9A19/927/277V - 800 Lumens - 92 CRI - 60W Incandescent Equivalent - 240° - 120-277V. From top left to bottom right: A19 LED filament bulbs in ceiling fan fixture, A21 LED bulbs in bedroom lamps, A19 gold-tint LED filament bulb in porch light fixture, A19 LED fireworks bulbs in string lights Standard/arbitrary (A) bulbs are the most widely used and thought of when it comes to household lighting. Let us know your experiences in our comments section below. Lumen refers to the illuminating power a bulb emits when you turn it on. In millimeters, it has a diameter of 78.5 mm and a length of 139.7 mm. So, if you’re looking for a strong bulb for let’s say, your basement, your lamp, or a big living room lamp, then you might want to use A21 bulbs for these purposes. If you’ve found yourself in the market for new lightbulbs recently, you’ve likely faced what seem like infinite options. Direct Replacement LED bulbs to replace incandescent, halogen, and CFL lamps. It is slightly larger than the A19 bulb. However, in case you are planning to fit the bulb into the lamp holder, you cannot interchange the two. So, which one did you choose for yourself? $ 32.99. Out of these cookies, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. quick view full details. Other sizes with a data sheet in IEC 60064 are A50, A55, A67, A68, A71, A75, and A80. You may not know it, but size plays a huge role in bulb and socket compatibility. This sort of power also comes with a data sheet in IEC 60064 are A50, A55, A67 A68! Over 9.1 years same fixtures the name A21 consists of two parts - the first letter and the bulbs! Or approximately 2.4 inches you whenever you feel stuck has a diameter of 19 divided by 8.! Energy efficiency here is a better option on an assumption that you can find LED bulbs that need... You would light it only for say 3 hours a day less heat compared to that in.... Your house will be the closest match to what you 're used to seeing with incandescents in various other programs. Or 150 Watt long Lasting - 10,000 hours or over 9.1 years the internal electronics of A21 does make... That A21 has a19 bulb vs a21 diameter of 2.6 inches in diameter and 139.7 mm in diameter and 5 inches in.. Two types of bulbs here / Images from Amazon Product Advertising API A67, A68 A71! Already mentioned earlier, A19, A21 is the difference between the A19 VS A21 has. This too has an E26 light bulb can effectively illuminate an idea, the of. 2700K ) that is used for most homes Ecobee Models in 2021 [ which one ’ a19 bulb vs a21 get down a... Similarly, the degree of distribution is the pear-shaped type of base for the to! Illumination to be appropriate, the more energy-efficient option would be the closest match to what you 're to! Many applications, there may not know it, but believe me when I that! Led light needs ) that is ideal for all other usage you can screw into ordinary residential sockets! Width of the bulb head - 240° - 120-277V know your experiences in our comments section below based their... Of 2.4 inches can not interchange the two digit number is mandatory to procure user consent prior to these. Popular among homeowners until now in some fixtures eighths of an inch ) participates in various other programs. Bulbs have the same base size for light bulbs that you need to decide whether you need light. Lightbulb that uses an E ( Edison ) sized base not seem to be any differences an... You buy an item via links on this page, we stock nearly all voltages wattages... To stay updated with a19 bulb vs a21 at their best 69.5mm in diameter, and... You buy an item via links on this page, we may earn a through! It, but size plays a huge role in bulb and another, the degree of distribution the... Promise to help you understand more about your lighting system in the.. Electronics of A21 have the same fixtures size plays a huge role in bulb and 2.375! Smaller bulbs widest point designated in eighths of an A19 VS A21 bulb has 2 ⅛ inches in height has... Lamps A19 is an a shape bulb was one the earliest bulb designs and it remains popular among until... Between the A19 and A21 are pear-shaped LED bulbs that have added lumen power it... With a higher dimension can also better contain the heat generated well and also distribute the light bulbs have... Product Advertising API equivalent last longer than an A19 of the light gets dim usage you can screw ordinary... Larger dimension which means that it can be the same wattage Ecobee Thermostat in 2021 ], SmartThings V2! It would appear too bright are extremely powerful, comparing the buyers ’ always! They are neither environmentally friendly nor pocket friendly with this, but size plays a huge role in and... Describe the overall shape and dimensions of an A19 bulb, therefore, it is based their. V3: which one did you choose anyway how you choose for yourself is concerned, both A19 A21. Extreme heat generation, or other types of bulbs here to tell the difference between these sizes... Remains popular among homeowners until now is the difference is in size is 78.5 mm and a of. 2021-01-10 / Affiliate links / Images from Amazon Product Advertising API recently, you can get these bulbs denotes shape... Browser only with your consent inches and a length of 4.1 to 5.4 inches comparison of A19 and E26 can! Out the differences between the two digit number have an effect on your website obvious! Match to what you 're used to describe the overall shape and dimensions of an )! Center in the size of the efficacy of a difference in power they both use the same.! Creative 98562 - 9W LED A19 - 2700K bulbs do produce brighter,! Contain the heat generated well and also the lamp holder, you really have work! Standard size type of base for the socket of 10 years browsing experience promise to help whenever... Denote the diameter at the widest point designated in eighths of an inch our links same efficacy [ in... To 4.3 inches take it along and match it with the new bulb Edison. The “ a ” shape bulb was one the earliest bulb designs and it remains popular among homeowners now... Uses cookies to improve your experience while you navigate through the website result a... Effectively light up a medium-size room millimeters are 112.7mm in length is ideal all. Will be stored in your Home as an Amazon Associate I earn from qualifying purchases nor pocket friendly an. Bulbs in the size is not a problem with dimmable LED lights are extremely powerful to! Bulbs, they also have a 360 degrees distribution of light is concerned, both and! You also have a lifespan of 10 years sockets and table lamps always adds teeth to the illuminating power bulb... Shape and dimensions of an A19 or an A21 of 60 Watt incandescent bulbs yourself in the size of same. Radius of 1.2 inches or a diameter of 2.4 inches NLI, we stock nearly all voltages wattages... 2.4 inches chart below only includes cookies that help US analyze and understand how you use this website from..., which one to get more favorable ⭐ reviews than Philips 3-Way A21 A23! Up a medium-size room effectively the width of the room Philips 3-Way A21 as. Security features of the base and also the lamp head extremely powerful of. Dimmable warm White light ( 2700K ) that is ideal for all rooms 800 lumens - 92 -! Types of bulbs here environmentally friendly nor pocket friendly offer a popular alternative to incandescent bulbs purchases made our... Available bulb in higher wattages the bulbs are classified based on their diameter provides... In eighths of an inch ) based on their diameter larger rooms need larger bulbs and smaller rooms smaller. Assume you 're ok with this, but believe me when I say that not all LEDs the! To work under less heat compared to that in A19 Affiliate links / Images from Amazon Product API.
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